Incubator-heater.



C. NUTTER.

INCUBATOR HEATER. APPLICATION FILED FEB. 9. 1916.

Patented Oct. 9,1917

2 SHEETS-SHEET I (1n uzmtoq, CNUTTER threugg hv lathe incuba'torsi*intbfthisincubator and may be there h 1 V y I form and 1's supported}beneath "the 5 :i ee ipn :iS; illus; rated in .the-ia cc bm ag 2 I a;verl ic i. sectional Evietv e-hatter 1 J lp e v j 'Be itknowlr thatI,'=igLAfiDl f N-1llfl liill, a citizerl I of athe United. States,'-res1d1ng at V accompanying drawings.

' Thelg'en'e'ral object oflmy in'vention is provision 'of'a veryl'gsimp'lex heater forth-1 s; purpose :Wherebyi bothis water%an'd fresh'a1r may berheated by the:sameflamp ergheatmgfl applilalicez :aand.fcarried' 5 and ":eireulated;

A furtherobjeet wfnm I provision of a very simple, cheaply construction;r015, this charaetem-Wher'em' the heat from the lamp fumes is caused toassist in heating thQiresh' -airand=.;-'water entering thee-incubatorbut; prevel lteicl ':fmrgpl ltselfr Anqther pbj'eCt-is: the protz isiohken; r mpar -a ar .atCl lfling' 0 repairing i a i ee ilywasem e w vQther; olgj 6011s; willl appearx1nwth COI IISG'OfthegiiqllowingzdfiSeription;

pany ing drawingsygyyhereinz M I Figure i-anr elevation oi'my improvedheater in applied-ppsitiong "we;

Big/4, a; sectional nates a jlamp casing whih is made 'ofsheet" met aandwhich is: cylindriealr'in *form and inte whicjh; the. chimney 1111?of ,the' lamp; is P adapted -t0 be projected es -illustrated" in vThetop o fhthe-lamp casing 10 isj aseptum 1 12 which: also 5 forms the i1bottbni- :Wally of a..-watertank- 13, 'f'Fro'rh the; Wate tankLatitsupper end exteridsian up f wardly-"kinclined I water ';pipe14-Whi'ch'fleads 0r iotherwi'se 'fermed td-provide for a- "airculationof hot Water for: heating the 1'1'1'teriomof the; incubator."Surrounding the cas- V .CLAUDE NII'r'rER, IQFAMONTESANOQ WASHINGTON;

1 the-136p 1916. Serial-Nb. 77,214. '5 $1. h

In order zt' 'previde 6: a ming ater an a T ,1

-to ex agljn'sionof; Water Within plpell lgligat' L I 22. The lamp T mayfb'ei bff" an' enters theincubatorfisuncontaminated by. The heat is ofcourse to be con-' trolled by a suitable thermostat which is -ilustrated ;inT the drawings and designated a up through the heated watervpipe Hand fumes.

.carried out therefrom. V I v s It will be seen that thisconstructionpro-ividesa waterheating plant for incubators, very simple,in operation and so certain in; its action, that it is no moretroubleto; run

the tank 1 3 isfilled with water to the proper height, as is the pipesystem 1 L extending thereform. Inasmuch; as the water pipe ll isinclined upward, it will be obvious that the upper end of the pipe, thatis, theend which is entered into the incubator, and the" coilsiof pipe.disposed within the incubator will be only half-filled with water.

cubator. At the same time fresh air is drawn inthroughthe perforations20 and into'the space 21 where it rises around the Wall'of thecasing 10their around the tank,-

and around the pipe 14, and thus; passes intothe incubator, QThus allthe fresh air entera. ingllth'e incubator is warmed prior to itsrentrance'lih The fumes from the lamp pass off througlfithepipe section26, into the space 25' -and circulate around" the wall of the casing 15and eventually pass-out through the bottoinof. the heater between thewalls'l'e andza It will be' seen that no heat is wasted in this heateran drfurtherthat the airjwhich generally 3% I do notiwish to be limited,

l 1owever, to any particularformofthermo stat; With my improved heaterthe incu-, batoris' heated by gentle warmth, andwarm; fresh 'air iscontinually enteringfthe incu 'batorand vitiated air iscontinuallybeing,

and operate in connection with an incubatoror brooder than it i s tooperate aheater using hotair alone for the heating agency.

The advantages of using a hot water heat-'3 ing system'infplace of a hotair heating system is that should the fire go out in a hot air machinethetemperatureof the ini i 7 cubator or. brooder will dropinstantaneously with disastrous results. With hot water as theheatingimedium, when the lamp goes out, thajtris,- if it sliould go out,it willrequire hours "for the machine to; becomev chilled sufliciently'to endanger the eggsin theincub'ator, Ihave found in practice that it isonlyfnecessary' to fill the ,tank 13 7 once for a hatch. Afurtheradvantage of this heater is that the air used'for ventila-,

tionis heated before it enters the incubator. This warm fresh air iscarried into the top of the lncubator by the naturalcurrent set then:the heatedfresh, air works its way down through the incubator into theegg The lamp is then heated, Which heats the water injthe tank and inthe pipe system leadingh; therefromand into the incubator, This hotwater ci'rculates through the coil'in thein- 1 and nursery, taking ofi'the 6111" air with *it as it passes off at the outlet ducts usuallyfound in ea'chcorner of incubators.

ward at such an angle that-when the heater is full ofWat-er the pipesinside the incu-ggo bator are not I over one-half full of water. I When;the .water heats,--the heatlecirculates' i through the pipes andassistsinheating-the' incubator much; better than when the pipes are completelyfilled w ithwaterx'Allslim- 85 V bility ofpressure on the pipesiselim'inated bymeans' ofthevent pipe 31. Thisis also 5 assisteclby the;fact that at no; time arethe 1' pipes-within thelincubator or the pipe 11- entirelyrfilled with; water.1- In: 'actual testl W a g HCubatO thismachine-Was operated 21 days; ontwdgallonsofoil worth aboutl30cp Havingdescribed my inventiomw hat I claimisz V 9 5 1. An incubator heatercomprising acestrally disposed lamp chamber," a "i'vaterheata ing tankdisposed above the iamp chambep and having 'QLIatQI'QILy QXtQ'IidiiT Igp a Y casing surrounding-the l amp ohamb r and;

tankinclosing a fresh air; heatingchamberff a fresh air conduit leadmgtherefrom and surrounding the waterpipe, and 'SHII'OUDClIIIg thefresh-fair chambergspaced therefrom and having-7a" discharge o en-# 9mg, and a pipe connecting the lamp ber, with the interior of i saidcasing;

2. An incubator heater' compri'sing a cening tank disposed above thelamp chamberfl and having a laterally extending pipe, the bottom of thewater heating chamberandi "the top of the lamp chamberbeing formed of asingle septum, a casing surroundingetlife heating chamber andttankand inspaced re-' i lationthereto and- :1nclos;inga fresh air chamber open at.its lower end and closed at its; upper end", freshx-air conduit leadingtherefrom and surrounding the water pipe'gf and a casingsurrounding thei-fr'esh ai'r chamber and: spaced therefrom andektend" ing'a distancealong the; fresh fairxconduit', theizcasinglbeing, open at; itsbottomahdclosed: at-its top, agpipe leading .from-the lamp Casing into the lowerportion; of said' last-named casing,rand meansfor filling anddrainingthe watertank; 1.. a t 3. An; incubator heater comprising aeen-c. trally disposed lamp'cha'mber a water heate 7' ing tank? disposedabove the lamp chambea-ils the bottom of the tank forming vthe top ofthe lamp chamber and said tank having a laterally extending pipe, acasing surrounding the lamp chamber and tank, open at its bottom for theadmission of fresh air and closed at its top and forming a fresh airchamber, a fresh air conduit leading therefrom surrounding the waterpipe,'said conduit being rectangular in cross section, and

a casing surrounding the fresh air chamber but spaced therefrom andclosed at its top Y but open at its bottom, said casing having parallelextensions or parallel walls extending on each side of and in proximityto the.

side of the air conduit, thespace inclosed by said walls being closed atthe top and openat the bottom, a pipe leading from the interior of thelamp chamber into 'the lower portion of said extended part of the outercasing, a filling pipe extending from the tank upward through both ofsaid casings, a cap detachably closing the filling pipe, a tap extending"from the tank outward through both'of said casings, and a vent pipeconnected to the Water pipe and extending upward through the outercasing.

4. In an incubator heater of the character described, a lamp casing, aWater tank sup ported thereon and having a laterally extending waterpipe adapted to enter an incubator, a fresh air casing surrounding thenulus disposed between the water tank and i the first-named casing andsurrounding said filling pipe, and the water pipe. p

5. The combination withwan incubator having a side wall, of a heatertherefor comprising a centrallydisposed lamp chamber, a tank extendingacross the upper end of a' vent pipe leading from the lamp 'chambe'randhaving a laterally disposed pipe extending into the incubator,

a casing surrounding the lamp chamber and the tank butterminating shortof the lower end of the lamp chamber and being formed withperforationsat its lower end for the entrance of fresh air, said casingclosing the fresh air heating chamber, a conduit rec-' tangular incross.sectionextending from the upper-end of the fresh air heating chamber vpassing throughthe wall of the incubator,

and surrounding, said pipe, said conduit and an outercasingsurroundingthe fresh air heating chamber, extending over the top thereof butterminating short of the lower end'of the fresh air heating chamber,said casing having lateral walls extending therefrom and disposedinproximity to theside walls of the air conduit, the lower end of thespace formed by said extensions being open, said extensions beingflanged and the fianges'bearing against thewall of the incubator andattached thereto, and a pipe ex tending from the lamp chamber into thetensions.

lower end of the space defined by said ex-' In testimony whereof Ihereunto aflix my signaturein the presence of two witnesses.

Witnesses: w

W. F. BA Rows', 1 I E, D. KELLE MA Copies of this patent may be obtainedfor five cents each, by addressing the {Gommissioner otlatents,

. Weshington,D.0. p p p i CLAUDE NUTTER. v I

